<template>
    <div>
         <!-- 面包屑导航区域 -->
       <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>商品管理</el-breadcrumb-item>
            <el-breadcrumb-item>商品列表</el-breadcrumb-item>
       </el-breadcrumb>
       <!-- 卡片视图区域 -->
       <el-card class="box-card">
           <!-- 搜索与添加区域 -->
             <el-row :gutter="20">
                <el-col :span="8">
                  <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
                    <el-button slot="append" icon="el-icon-search" @click="getGoodsList" >
                    </el-button>
                  </el-input>
               </el-col>
               <el-col :span="6"><el-button type="primary" @click="goAddPage">添加商品</el-button></el-col>
            </el-row>
            <!-- 商品列表区域 -->
            <el-table :data="goodsList" stripe border >
                <el-table-column type="index" label="#"></el-table-column>
                <el-table-column prop="goods_name" label="商品名称"></el-table-column>
                <el-table-column prop="goods_price" label="商品价格(元)" width="90px" ></el-table-column>
                <el-table-column prop="goods_weight" label="商品重量" width="70px" ></el-table-column>
                <el-table-column label="添加时间" width="150px">
                    <template slot-scope="scope">
                        {{scope.row.add_time | dateFormat}}
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="130px">
                     <template slot-scope="scope">
                       <!-- 修改按钮 -->
                       <el-button type="primary" icon="el-icon-edit" size="mini">
                       </el-button>
                       <!-- 删除按钮 -->
                       <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeGoodsById(scope.row.goods_id)">
                       </el-button>
                    </template>
                </el-table-column>
            </el-table>

            <!-- 分页区域 -->
            <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[10, 15, 20, 25]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total">
            </el-pagination>
       </el-card>
    </div>
</template>

<script>
export default {
    data (){
        return{
            queryInfo:{
                query: '',
                pagenum: 1,
                pagesize: 10
            },
            goodsList:[],
            total: 0
        }
    },

    created (){
        this.getGoodsList()
    },

    methods:{
        // 根据分页获取相应的商品列表
        async getGoodsList(){
            const {data:res} = await this.$http.get('goods',{params: this.queryInfo});
            console.log(res);
            if (res.meta.status !== 200) {return this.$message.error('获取商品列表失败')};
            this.total = res.data.total;
            this.goodsList = res.data.goods;
        },
        // 监听数据分页变化
        handleSizeChange(newSize){
            this.queryInfo.pagesize = newSize;
            this.getGoodsList();
        },
        handleCurrentChange(newNum){
            this.queryInfo.pagenum = newNum;
            this.getGoodsList();
        },
        async removeGoodsById(id){
            // console.log(id);
            const confirmRes =await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(error => error);
            if (confirmRes !== 'confirm'){return this.$message.info('已取消删除商品')};
            const {data:res} =await this.$http.delete('goods/'+id)
            if(res.meta.status != 200) {return this.$message.error('删除商品失败')};
            this.getGoodsList();
            this.$message.success('删除商品成功')
        },
        goAddPage(){
            this.$router.push('goods/add')
        }
    }
}
</script>

<style lang="less" scoped>

</style>